Tuna Potato Salad (Japanese Creamy Tuna and Potato Mix)

Tuna Potato Salad (Japanese Creamy Tuna and Potato Mix)

Quick answer

Tuna potato salad mashes boiled potatoes while still hot, then folds in drained canned tuna, salt-pressed cucumber, carrot, and onion with mayonnaise and whole grain mustard.

What makes this special

  • Tuna Potato Salad mashes boiled potatoes while hot to create a creamy texture with mayonnaise.
  • Mashing potatoes while hot binds starch with mayonnaise for a creamy texture
  • Salt-pickling and squeezing vegetables prevents the salad from turning watery
Total time
38 min
Level
Easy
Servings
4 servings
Ingredients
8
Calories
330 kcal
Protein
13 g

Key ingredients

PotatoesCanned tunaCucumberCarrotOnion

Core cooking flow

  1. 1 Wash 500 g potatoes with the skins on and place them in a pot with enough water to cover.
  2. 2 Peel the potatoes while they are still hot and mash them in a large bowl.
  3. 3 Finely chop 100 g cucumber, 70 g carrot, and 60 g onion.

Tuna potato salad mashes boiled potatoes while still hot, then folds in drained canned tuna, salt-pressed cucumber, carrot, and onion with mayonnaise and whole grain mustard. Mashing the potatoes warm keeps the starch active, which bonds more effectively with the mayonnaise for a creamier result - but over-mashing turns the texture gluey, so leaving some chunks is ideal. Salting the chopped vegetables for five minutes and squeezing out the released moisture is essential to prevent a watery salad. The tuna must also be drained thoroughly in a strainer to keep the flavor clean. Whole grain mustard adds a peppery sharpness that cuts through the richness of the mayonnaise, and a twenty-minute chill in the refrigerator lets all the flavors meld evenly.

Prep 18min Cook 20min 4 servings

Instructions

Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.

6 steps
  1. 1
    Control

    Wash 500 g potatoes with the skins on and place them in a pot with enough water to cover.

    Boil over medium heat until a chopstick or skewer slides through easily, then drain before they cool.

  2. 2
    Season

    Peel the potatoes while they are still hot and mash them in a large bowl.

    Stop before they become completely smooth, leaving small chunks so the salad stays creamy without turning sticky.

  3. 3
    Season

    Finely chop 100 g cucumber, 70 g carrot, and 60 g onion.

    Sprinkle the 1/2 teaspoon salt evenly over the vegetables, toss lightly, and let them stand for 5 minutes to draw out moisture.

  4. 4
    Season

    Squeeze the salted vegetables firmly by hand or in a clean cloth until they no longer drip.

    Put 150 g canned tuna in a strainer and drain until excess oil stops falling.

  5. 5
    Prep

    Add the squeezed vegetables and drained tuna to the mashed potatoes, breaking up the tuna lightly as you fold.

    Add 5 tablespoons mayonnaise and 1 tablespoon whole grain mustard on top before mixing fully.

  6. 6
    Finish

    Fold from the bottom upward with a spatula so the potatoes do not become dense or gluey.

    Check the seasoning, then chill the salad for 20 minutes and serve it cold once the flavors taste even.

After the steps

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Tips

Squeeze vegetable moisture well to avoid a watery salad.
Do not over-mash potatoes to keep better texture.

Nutrition (per serving)

Calories
330
kcal
Protein
13
g
Carbs
30
g
Fat
17
g